Home / 763,360.11-1,053,437.94-419,218.29

Finding the Fourth Proportional to 763,360.11, 1,053,437.94 and 419,218.29

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Solution

The fourth proportional to 763,360.11, 1,053,437.94 and 419,218.29 is: 578,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,360.11 : 1,053,437.94 = 419,218.29 : x
  2. Step 2: Convert to fraction form
    763,360.11/1,053,437.94 = 419,218.29/x
  3. Step 3: Cross multiply
    763,360.11x = 1,053,437.94 × 419,218.29
  4. Step 4: Simplify right side
    763,360.11x = 441,620,451,827.92
  5. Step 5: Solve for x
    x = 441,620,451,827.92/763,360.11
  6. Step 6: Final answer
    x = 578,521.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.